Water: urban water management planning.

Existing law, the Urban Water Management Planning Act, requires every urban water supplier to prepare and adopt an urban water management plan for submission to the Department of Water Resources and other entities that includes specified content, including an urban water shortage contingency analysis. Existing law requires this analysis to include actions to be undertaken by the urban water supplier to prepare for, and implement during, a catastrophic interruption of water supplies, including an earthquake. Existing law requires an urban water supplier to update its plan at least once every 5 years on or before December 31, in years ending in 5 and 0, except that the 2015 plan is required to be updated and submitted to the department by July 1, 2016. This bill would require an urban water supplier to include within its plan, beginning January 1, 2020, a seismic risk assessment and mitigation plan to assess the vulnerability of each of the various facilities of a water system and mitigate those vulnerabilities. This bill would authorize an urban water supplier to comply with this requirement by submitting a copy of the most recent adopted local hazard mitigation plan or multihazard mitigation plan under specified federal law that addresses seismic risk.